Trail Ridge (U.S. 34): This road through Rocky Mountain National Park is the highest continuous auto road in the country. Itâs truly an all-American icon â the road itself is listed on the National Register of Historic Places.
Lumber Dimensions. 2x4s are not actually 2 inches by 4 inches. When the board is first rough sawn from the log, it is a true 2x4, but the drying process and planing of the board reduce it to the finished 1.5x3.5 size. Here are the common sizes of lumber, and their actual sizes.
This is roughly about 38 millimeters thick by 89 millimeters wide. The 2 inches by 4 inches dimensions are the actual size of the piece of wood when sawn off from the log. But as it undergoes the milling process, the size decreases to 1.5 inches by 3.5 inches.